6531442 has 16 divisors (see below), whose sum is σ = 10105920. Its totient is φ = 3164112.

The previous prime is 6531433. The next prime is 6531457. The reversal of 6531442 is 2441356.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14659 + ... + 15097.

It is an arithmetic number, because the mean of its divisors is an integer number (631620).

Almost surely, 2^6531442 is an apocalyptic number.

6531442 is a deficient number, since it is larger than the sum of its proper divisors (3574478).

6531442 is a wasteful number, since it uses less digits than its factorization.

6531442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657.

The product of its digits is 2880, while the sum is 25.

The square root of 6531442 is about 2555.6686013644. The cubic root of 6531442 is about 186.9259909026.

Adding to 6531442 its reverse (2441356), we get a palindrome (8972798).

It can be divided in two parts, 65314 and 42, that added together give a palindrome (65356).

The spelling of 6531442 in words is "six million, five hundred thirty-one thousand, four hundred forty-two".